Google MapsMap view of North Hunterdon High School, where a teen girl went into cardiac arrest before being resuscitated yesterday.

CLINTON TOWNSHIP — A 16-year-old went into cardiac arrest at North Hunterdon High School in Clinton Township just after 7 p.m. Tuesday night, said Clinton Township Lt. Doug Higgins.

The teen was jogging through the school's hallways as part of cheerleading practice, Higgins said, when witnesses said she started having trouble breathing and collapsed. School staff, whose names were not released, used a portable defibrillator on the victim, who had no pulse and was turning blue from lack of oxygen, he said.

The first officer on the scene administered chest compressions while a bystander performed rescue breathing, Higgins said, and on the third cycle the victim started breathing again on her own and her color returned. She was taken by helicopter to Morristown Memorial Hospital.

It was not immediately known what caused the incident, Higgins said, but the teen's mother told police that her daughter has sports-induced asthma.